Ejector method and apparatus



Jan, 6, 1925.

R. SUCZEK EJEGTOR METHOD AND APPARATUS Filed Dec. 20, 1920 I N VEN TOR.

1 A TTORNE Y.

Paie-mea ian. 6 19252 ROBERT SUCZEK, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNO-R. TO C. H. WHEELER MANUFACTURING COMPANY, OF lPHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

EJECTOR METHOD AND APPARATUS.

Application filed December .20, 1920. Serial 431,825.

To 'all whom it may concern:

Beit known that I, 'ROBERT SUozEK, aJ citizen of the Czechoslovak Republic, resid-y ing in the city and county of Philadelphia,

State of'Pennsylva-nia, have invented certain new and useful Improvements in Ejec tor Methods and Apparatus, of which the following is a specification.

My' invention relates to ejector apparatus employing elastic motive fluid, as steam, for entraining and raising to higher pressure another elastic fluid, as air, gas, vapor, or a mixture of any of them.

. In accordance with my invention, the ejector structure, as, the diffuser,is cooled, for example, as described iii my prior Patent No. 1,282,977, October 29,- 1918, the cooling medium serving also for extracting heat tor may discharge the mixture of entrained from associatedvh condenser structgre.

In accordance with my invention, an ejecand motive fluid into a condenser,'in which the condensable component is coiidensedfand I the uncondensable component cooled, and the cooling medium yfor the condenser is employed also forextracting heatv from the mixture of motive and' entrained fluids,`par ticularly while` undergoing compression, as 'by conversion of velocity into pressure.

In accordance `with my invention, 'an ejector, or part thereof, maybe built in or constitute part of a condenser structure; and such condenser structure may be employed for condensing the mixture of moftive and entrained fluids dischargedby the ejector. Further', in accordance with my invention :Ln ejector may discharge into an interstage condenser which in turn discharges to the suction of'a second stage ejector, parts of the ejectors, as their diffusers, being cooled by` the medium which coolstheinterstag'e condenser; and a .further condenser into which the`second stage ejector discharges `may be similarly associated or related.

My invention resides initlie method and apparatushereinafter described'and claimed. For an illustration of one of the various lforms mv invention 4may take, reference is to be had to the accompanying.;- dra-wing, in which: f A

Fig. 1 is a vertical sectional view of ap paratus embodying my invention. Fig. 2 is a plan View "of the structur shown in Fig. 1V with the top removed.

Referring to the drawingyC isl the shell or body of the condenser or combined condenserand ejector structure provided at opposite ends with the tube sheets a and b,

through which extend a. plurality of vertical tubes c and'c1, of different groups. The. tube sheet a forms one wall of a chest or box By having the removable cover d and the side Wall e. Within the box B is formed byl the wall f the suction chamber g, with which communicates the suction port o'r intake h connected to a condenser,not shown, or otli er device or j region 'from which air or other elastic fluid isto be withdrawn and* raised to higher pressure.; Carriedx by the cover d is a nozzle plate "i carrying ejector nozzle structure, iii this instance comprising a plurality of nozzles `N, which `extend into the suction chamber g ,and whose intakes communicate withthe motive fluid or steam chamber j," to which lsteam or other motive fluid is -delivered through the strainerlc and delivered by thepipe mcontrolled by thevalve n. Aligned with the nozzles N is the ejector diffuser D, in this instance illustra-ted 'as a convergingdiverging tube. The diffuser is carried by the tube` sheets a and b and discharges into the chamber o of the` lower box or chest B1, which has a partition p completely separating'the chamber o from from the condenser tubes 0 of the first group, and constitutes also the suction chamber of the second sta-geN ejector Whosey diffuser, indicated at D1, is carried by the tube sheets a and I) and is alignedv withthe second stage nozzle structure N1, communieating with the steam Io'r motive fluid ycham'- lber t, with ywhich communicates the aforesaid pipe' m, and`- which receives steam throughthe strainer u delivered thereto by 'the main steam pipe w. The diffuser D1 dis charges into `the chamber g, With'which communicate at their lower ends the tubes o1 of the second group of tubes, these tubes discharging into the chamber w in chest B,

such chamberV being formed/between the partition or wall s and the peripheral wall e of the chest B. At a; is shown the discharge port communicating directly with atmosphere or with any region under any desired pressure. l

Associated with each group oftubes may be one or more drainage tubes y having its upper end flush with the upper surface of thetube -sheet ,/z, whereby any liquid above the tube sheet a may be drained downwardly through the tube y and then escape into the chest B1, each tube being provided with a suitable liquid seal structure a'. The condenser tubes preferably project.l as indicated, suitably above the tube sheet a, so

` that" any liquid accumulating thereon will notj interfere with upward passage through the tubes of the ejector discharge.

Communicating with the chamber o is the drainage pipe 41, through which is drawn( ofi' any liquid or condensate received in the `chamber 0, such liquid or condensate being conducted back undei vacuumto themain condenser or to any` other suitable destina-Miv tion. Similarly, -the pipe b1 drains the chamber q, the drainage being conducted back tothe main, condenser or to any other suitable destination, or may be discharged at atmospheric pressure. l

Between'the tubes of the first and second groups is disposed the downwardly extend ingvballle or dividing'plate d1, which at its lower end is ,spaced above the tube sheet b. Communicating with the interior of the shell C is the inlet e1 for thefcooling medium, which may. be water, condensate or any other suitable medium. This cooling mediuin passes between the tubes c ofthe first group and around and in contact with Athe diHuser D of thefirst stage ejector, and thence passes the lower edgeof the baffle (Z1 v and thence between the tubes c1 of the secondgroup and around and in Contact with the diHuser D1 of the second stage ejector, the cooling medium then passing off through the outlet f1.

The operation is as follows:

Steam or other motive fluid is delivered through the pipe (U to the nozzle structures -N and N1 of both ejectors. The jets from the nozzles of the first stage ejector entrain the air or other elastic fluid entering at 7i,

and the. mixture of motive and entrained fiuids is projected at highvelocity intothe diffuser D, where the velocity is reduced while effecting increase in pressure.` The mixture of motive and entrained fluids is chamber 0 and then' passes upwardly through the tubes c of the ,first group or interstage condenser, and in these tubes the condensable component off the eject-or discharge, as the steamV or other condensable fluid, is condensed, the .condeiisate running downwardly through the tubes 0 into the chamber 0, from which itis withwhich it reaches substantially free of steam,

or condensable fluid, and cooled. It is then acted upon by the jets from the second stage nozzle structure N1 and projected at high velocity into the diffuser D1, where again further compression with loss of velocity takes place. rlhe second stage motive fluid and the air or other entrained fluid is discharged into the chamber Q, in which the pressure may be atmospheric or substantially atmospheric, or any other suitable pressure. rllie mixture then passes upwardly through the tubes 01 of the second group or condenser. The' coiidensable component, as the steamfrointhe nozzle structure of the second stage, iscondensed, the condensate running vdown the tubes c1 into the chamber Q, from which it is withdrawn through the pipe b1. The air or other uncondensable fluid is discharged into the chamber w, from which it passes 'off through the port az.

The cooling water or medium while the abovel action takes place also cools the diffusers D and D1, and so abstracts heat from the mixtures of motive fluid and entrained fluid while undergoing compression, effecting results ofthe character referred to in the aforesaid Patent 1,282,977.

AIn accordance with my invention, therefore, the structure is such that the medium which cools the mixture of motive and entrained fluids of an ejector also cools the heat transfer structure of the condenser into which the mixture is discharged.

And by an arrangement of the character described, the structure is madecompact in that the ejector structure is part of or built in the condenser structure.

It will be understood that my invention is not limited to the employment of a single cooling medium. By dividing the shell C into different compartments, a plurality of cooling media may be employed. For example, the diffuser D may be cooled by one medium and the tubes e by another, and siniilarly in the case of the diffuser D1 and tubes c1. Or thcdiffuser D and the tubes c may be cooled by one medium, and the di'lfuser D1 and the tubes 01 by another medium.

That I claim is:

l. The method of compressing elastic fluid, which consistsin expanding an elastic motive fluid, entraining therein the elastic fluid to bev compressed, compressing the mixture of motive and entrained fluids by con version of velocity into pressure, causing t ansfer to a cooling medium of heat from said mixture while undergoing compression,

and thereafter condensing from said inix-' lll) motive fluid, entraining therein the elastic fluid to be compressed, compressing the mixture of motive and entrained fluids by con- `version of velocity into pressure, causing transfer tov a cooling medium of heatfrom said mixture While undergoing compression,

lthereafter condensing vfrom said mixture the thereafter condensing from said mixturethe.

condensable component thereof. in a second stage expanding motive fluid, entraining therein the uncondensed component of said mixture, compressing to higher pressure the mixture of said uncondensed fluid and said Asecond stage motive fluid by conversion of Velocity into pressure, and extracting heat from said second stage mixture while underv going compression.

4. The method of compressing elastic fluid,

which consists in expanding an elastic motive fluid, entraining therein the elastic fluid to be compressed, compressing the mixture of motive andfentrained fluids by conversion of velocity into pressure, causing transfer'to -a coolingmedium of `heat from said mixture while undergoing compression, thereafter condensing from said mixture the condensable component thereof. in a second stage expanding motive fluid, entraining therein the uncondensed component of saidmixture, compressing to higher pressure the mixture of said uncondensed fluid and said second stage motive fluid by conversion of velocity into pressure, extracting heat from said second stage mixture while undergoing comf pression, and thereafter condensing from said second stage mixture the condcnsable component thereof. l

5. The method of compressing elastic fluid, which consists in expanding an elastic motive fluid, entraining therein the elastic fluid to be compressed, compressing the mixture of motive and entrained fluids by conversion of velocity into pressure, causing transfer to a cooling medium of heat from said mixture While undergoing compression, and thereafter condensing by said cooling medium the condensablefcomponent of said mixture. f

6. The methody vof compressing elastic fluid, which consists in expanding an elastic motive fluid, entraining therein the elastic fluid to be compressed, compressing the mixture' of motive and entrained fluids by con- Version of velocity into pressure. causing transfer to a cooling medium of heat from said mixture while undergoing compression, thereafter condensing by said cooling inedium the condensable component of said mixture, compressing the uncondensable component by similar action of a motive fluid in a second stage, and extracting heat from the second stage mixture While undergoing compression. i y

7. The method of compressing elastic fluid, which consists in yexpanding an elastic motive fluid, entraining therein the elastic fluid to be compressed, compressing the mixture of motive and entrained fluids by conversion of Velocity into pressure, causing transfer to a cooling medium of heat from said mixture While undergoing compression',

lthereafter condensing by said cooling medium the condensable component of said mixture, compressing the uncondensable component by 'similar action of a motive fluid in a second stage, `and extracting heat by ,saidl cooling medium from the second stage mixture While undergoing compression.

8. TheV method of compressing elastic fluid, whichconsists in expanding an elastic motive fluid, entraining therein the elastic fluid to be compressed, compressing the mixture of motive and entraine'd fluids by cont version of velocity into pressure, causing transfer to a cooling medium of heat from said mixture While undergoing compression, thereafter condensing by -said cooling inedium the' condensable component ofv said mixture, compressing the uncondensable com ponent bv similar action of a motive -fluid in a second stage, extracting heat by said cooling medium from the second stage mixture While undergoing compression, and thereafter condensing by said cooling medium the condensablc component of said second stage mixture.

9. The combination with-an ejector. of a condenser'into which said ejector discharges, a second ejector withdrawing uncondensed elastic fluid from said condenser ahdraising it to higher pressureand means/for cooling the diffuser of said first named eiector by the cooling medium ,of said condenser.

10. The combination with an ejector, of al condenser into which said ejector discharges, and means for cooling said ejector and condenser with the same cooling medium.

1l. The combination with an ejector comprising nozzle and diffuser structures, of a condenser into lwhich said diffuser" dis-- charges, and means for passing the saine cooling medium in heat transfer relation with said diffuser structiiie and with the heat transfer structiiieof said condenser.

1Q. The combination Vwith an ejector coinprising nozzle and diffuser structures, of a condenser comprising a plurality of tubesv ."difiuser discharges disposed in said shell,

` and connectionsfor passing cooling medium.

into and from said shell in contact with said `tubes and said diHuser structure.

15. rlhe combination with a plurality of .-ejectors, an interstage condenser, and means A ejectors while undergoing compression.

for extracting heat by the cooling medium of said condenser from the mixtures of said 16... The combination withca plurality of ejectors,an interstage condenser, means for extracting heat by the cooling medium of said condenser from the mixtures of said ejectors Awhile undergoing compression, and

- asecondcondenser into which a vse'cond of said lejectors discharges.

' 17. The combination with a'plurality of ejectors, an interstage condenser, means for extractin heat by the cooling medium of said con enser from the mixtures of said cjectors while undergoing compression, and

` a second condenser into which a second of said ejectors discharges, said cooling medium cooling/said second condenser.

.18."lihe combination with a plurality ot ejectors, a condenser between two of said ejectors, a second condenser receiving discharge from a second of said ejectors, and

means for cooling each of said ejectors and the condenser into which it discharges by the same cooling medium.

19. The combination with a shell, oftnbe sheets spaced from each other, tubes within said shell extending through said sheets, a diffuserl of an ejector extending through said sheets, a chamber into which said difuser discharges and with which said tubes Icommunicate, a chamber with which the other ends of saidtubes communicate, and an ejector suction chamber adjacent said second named chamber.

20. The combination with a shell, of spaced tube sheets, chests on opposite ends of-said shell, a partition in one of said chests `forming separate chambers one of which is the suction chamber of an ejector, the diffuser of the ejector extending through said sheets and communicating at its one end with said suction chamber, a chamber in the other chest into which said diffuser discharges, and a plurality of tubes extending nozzle structure 'carried by. a wall of said chest.

I22. 'lihe combination Awith a shell, of spaced tube sheets, an ejector di'user and a plurality of condenser tubes disposed in said shell and extending 'through said sheets, said did'user discharging into said tubes, a chest having one of said sheets as a wall, a partition in said chest forming, the ejector suction chamber Aand a separate chamber l into which said tubes discharge, and a second ejector di'userextending ythrough said shell and sheets, the suction chamber of the second ejector being said separate chamber into which said tubes discharge.

23. rihe combination with a sheli, oit separated tube sheets, a plurality ci? groups of tubes extending through said shell and said sheets, a chest on each end of said sheli, an ejector for each group of tubes, the ejector diusers extending through said shell and said sheets, one of said lchests having three chambers the first of which. is the suction chamber of one ejector, the second the suction chamber of a second ejector into which the first group 'of tubes discharges, and the third a chamber Vintowhich the second group of tubes discharges, the` second chest having two chambers into one of which the `diffuser of the first ejector discharges and with which the first group of tubes communicates, andthe second into which the diffuser of the second ejector discharges and with which the second group of tubes communicates. Y i

24.. vThe combination with a shell, of tube sheets spaced from each other, tubes within said shell extending through said sheets, a diuser of an ejector extending through said sheets and said shell, a chamber into which said diffuser discharges .and with 'which said tubes communicate, a chamber with which the other ends of said tubes communicate, an ejector suction chamber adjacent said second named chamber, and means for passing through said shell cooling medium contacting with Said tubes and said diuser.

25. The combination with a shell, or"

spaced tube sheets,.chests on opposite ends llO of said shell, a partition in one of said chests forming sepa-rate chambers one of which is the suction chamber of an ejector, the' difuser of the ejector extending through Said shell and sheets and communicating at its one end With saidl suction chamber, a chamber in the other chest into whichv said diffuser discharges, a plurality of tubes extending through [said sheets and connecting said last named chamber with the second of said rst named chambers, and means, for passing,

ing medium vcontacting with said tubes and said diffuser.

27. The combination With a shell, of

spaced tube'sheets, an ejector diffuser and a plurality of condenser tubes disposed 'in said shell and extending through said sheets, said diffuser discharging into said tubes, a chest having one of lsaid sheets as a Wall, a partition in said chest forming the' ejector suction chamber' and a separate chamber into which said tubes discharge, a second ejector diffuser extending through said shell' and sheets, the suction chamber of the sec--l ond ejector being said separate chamber into which said tubes'discharge, j and means for passing through said shell cooling medium contacting with said -tubes and-said diffusers.

28. rlhe combination with a shell, of separated tube sheets, a plurality of groups ot' tubes extending through said shell and said sheets, a chest on each end of swaid shell, an ejector for each group of tubes, the ejector diffusers extending through said' shelland said sheets, one' of said chests having threel chambersthe first ot which is'the suction Achamber of onevejector, the second the suction chamber of a second ejector into which the first group of tubes discharges, -and the third a chamber intov which the second group of tubes discharges, the second chest havingv two chambers into one of which the diffuser of the first ejector discharges and With Which the rst group of tubes communicates, and thesecond into Which the diffuser ont the second-ejector discharges a'ndlwi'th which the second group of tubes. communicates, and means for passing .i through said shell cooling mediumcontacting with said diffusers and the tubes of said groups.

29. The combination With a pluralitybot ejectors, of an interstage condenser, a conv denser into Whicha later-stage ejector discharges, and means forv cooling said condensers and'ejectors by the same cooling medium. y 30.' The combination with an ejector comprising nozzle structureand di'user structure, of a' plurality of tubes disposed side by side with said diuser structure, and means for .passing a cooling medium in contact With saidl tubes and said diffuser structure. f

' 31. ,The combination with an-ejector comprising nozzle structure and diffuser structure, of a plurality of tubes into which said dil'user structuredischarges and disposed side by side` with said di'user structure, and.

means for passing a coolingmedium in contact With said tubes and said ditluser structure. j f

.32. The combination With an ejector comprising nozzle structure and dilusernstructure, vof a plurality'of parallel tubes into which said dii'user structuredischarges, the

axis of said ditfuseristructure being substantially parallel With said tubes, and means for passing a cooling medium around said diffu-ser structure and said tubes.

@ill

ln testimony whereof ll have hereunto signature this 14th day of December, 192.0.

sonner snozarr. 

